Number of warrants or rights issued during a period of time.

No definition available.

Name:	amtx_ClassOfWarrantOrRightIssued
Namespace Prefix:	amtx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents extended fee rate added to balance outstanding under debt instrument.

+ References

No definition available.

+ Details

Name:	amtx_DebtInstrumentExtendedFeeRateAddedToBalanceOutstanding
Namespace Prefix:	amtx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents equity financing.

+ References

No definition available.

+ Details

Name:	amtx_EquityFinancing
Namespace Prefix:	amtx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of cash outflow for debt waiver fees.

+ References

No definition available.

+ Details

Name:	amtx_PaymentsOfDebtWaiverFee
Namespace Prefix:	amtx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-3

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-14

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	srt_ConsolidatedEntitiesAxis=amtx_AafkMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=amtx_WarrantsInConnectionWithSubordinatedNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=amtx_SubordinatedNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=amtx_ThirdEyeCapitalRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Note 12 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands				6 Months Ended
	Aug. 01, 2023	Jul. 01, 2023	Jan. 01, 2023	Jun. 30, 2023	Jun. 30, 2022	Jul. 28, 2023	Dec. 31, 2022	Jan. 09, 2012
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)				$ 11.78			$ 15.92
Proceeds from Issuance of Debt				$ 21,627	$ 30,622
AAFK [Member] \| Warrants in Connection With Subordinated Notes [Member]
Class of Warrant or Right, Issued (in shares)			113
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)			$ 0.01					$ 0.01
Subsequent Event [Member] \| AAFK [Member] \| Warrants in Connection With Subordinated Notes [Member]
Class of Warrant or Right, Issued (in shares)		113
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 0.01
Subordinated Notes [Member] \| AAFK [Member]
Debt Instrument Fee Rate								10.00%
Subordinated Notes [Member] \| Subsequent Event [Member]
Equity Financing		$ 25,000
Debt Instrument, Interest Rate, Stated Percentage						8.75%
Subordinated Notes [Member] \| Subsequent Event [Member] \| AAFK [Member]
Debt Instrument Fee Rate		10.00%
Third Eye Capital Revolving Credit Facility [Member] \| Subsequent Event [Member]
Proceeds from Issuance of Debt	$ 2,300
Payments of Debt Waiver Fee	$ 100